The first time I did a show about women's relationships at work I felt guilty. This wasn't a happy story I was doing, but a piece about how poisonous things can become among women in the workplace. I felt bad because the idea that women have it in for eachother, that they're 'catty' and mean, is generally accepted, and it harms women. Female women-haters have become a popular stereotype.

The problem is, many of us have experienced some version of this behavior in our own lives. Some people even quit jobs because they can't take it any more. So I'm talking about it again, with the hope we can bring some understanding to this kind of behavior - and change it.

I had a great conversation last week with Kathi Elster and Katherine Crowley of K Squared Enterprises. They focus full-time on solving relationship issues at work. I just released a whole show about this today, but here are some quick points I picked up from our conversation.

Back when we lived in caves and men roamed around for food, women had to protect their offspring. The men competed and sometimes got killed doing it. It was our job to keep the next generation alive, and we befriended other women as part of this tactic. So we evolved not to compete openly like men, but covertly. This instinct lives on in us today.

Covert competition is responsible for a lot of less-than-appealing female behavior - in and out of work. But most of us are totally unaware of the extent to which we engage in it.

Women and men are harder on female bosses because we expect women to be nice. We don't necessarily expect that from men. So the next time you're inclined to label your boss a bitch, consider for a minute: if a man behaved like that would you feel the same way about him? Or would you just accept it?

Women tend to personalize business behavior - most men don't. So we're likelier than men to amp up the drama because we get upset and take it all personally.

Some senior women find it hard to be generous to their younger female colleagues because they faced such hardships on their own way up the ladder.

If you're a woman who's in a bad situation with a female boss, you could be piling on without realizing it. Take a step back, look at what's going on purely from a business perspective, and divorce yourself from the emotion. To hear about all this in more detail, tune into the latest show.